Rodion Amirov, who represented Russia on the international stage, helping them become world under-18 champions in 2019, has died at the age of 21 from cancer ©Getty Images

Russian ice hockey player Rodion Amirov has died at the age of 21 after an 18-month battle with a brain tumour.

Dan Milstein, the agent of Amirov, announced the death of the promising player who was living in Germany.

"It is we great sadness that we announce the passing of Rodion Amirov," Milstein wrote in a post on Twitter.

"Two years ago, Rodion was diagnosed with a brain tumour.

"From the moment he received the news, he refused to speak in the negative, determined to enjoy every day, facing it with the same positive attitude he showed during his hockey career.

"We will always remember his courage, his desire, his will, his smile, all of the great things about him."

Amirov represented Russia on the international stage having helped them win silver at the 2019 International Ice Hockey Federation (IIHF) World Under-18 Championships before starring in the 2021 World Junior Ice Hockey Championships.

During his domestic career, Amirov competed for Russian team Salavat Yulaev Ufa in the Kontinental Hockey League and was drafted by the Canadian National Hockey League side Toronto Maple Leafs in 2020.

"Over the duration of his courageous battle, Rodion's positivity inspired everyone around him, and he made lasting impressions with our team and fans in his brief visits to Toronto," said Maple Leafs President Brendan Shanahan.

"It's incredibly sad to see a young man with so much promise taken from us so soon.

"We offer our deepest condolences to Rodion's family and friends as we mourn this loss together."